diff -ruN faxalter/faxalter.c++.orig faxalter/faxalter.c++
--- faxalter/faxalter.c++.orig	Sun Jun 13 00:40:58 1999
+++ faxalter/faxalter.c++	Mon Jun 12 21:52:37 2000
@@ -185,7 +185,7 @@
     va_list ap;
     va_start(ap, fmt0);
     char fmt[1024];
-    sprintf(fmt, "%s %s\n", groups ? "JGPARM" : "JPARM", fmt0);
+    snprintf(fmt, sizeof(fmt), "%s %s\n", groups ? "JGPARM" : "JPARM", fmt0);
     script.append(fxStr::vformat(fmt, ap));
     va_end(ap);
 }